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Guide to COST-BENEFIT ANALYSIS of investment projects - Ramiri

Guide to COST-BENEFIT ANALYSIS of investment projects - Ramiri

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Figure F.2 Greenhouse-gas emissions in 2000Other energyrealted5%Waste3%Industry14%Power24%Agriculture14%Transport14%Source: Stern Review 2006Land use18%Buildings8%As we all know, there is great uncertainty attached <strong>to</strong> climate change projections based on anthropogenic emissionsand <strong>to</strong> the associated expected environmental damage and external costs. The available figures range from the€20/<strong>to</strong>nne estimate for the CO 2 permit trading price <strong>to</strong> the higher values estimated in literature (€140 and €170,respectively, in INFRAS-IWW (2002) and ETSAP-Sweden (1996). Recently the Stern Review 122 suggested an averagedamage value <strong>of</strong> €75/<strong>to</strong>nne CO 2 . The following diagram shows the recommended values estimated by the ImpactStudy 123 .Figure F.3 Recommended values for the external costs <strong>of</strong> climate change(€/<strong>to</strong>nne CO2)2001801601401201008060402002010 2020 2030 2040 2050LowervalueCentralvalueUppervalue122123‘The Economics <strong>of</strong> Climate Change’, www.sternreview.org.uk, 2006Impact Handbook <strong>of</strong> Estimation <strong>of</strong> External Costs in the Transport Sec<strong>to</strong>r, December 2007229

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